用matlab编辑黄金螺旋线,「螺线」螺旋线的画法---matlab代码 - 金橙教程网

螺线

clearvars;

close all;

clc;

%每个圆的周长是一样的

t = 0:0.01:4*pi;

x = cos(t);

y = sin(t);

z = t*2;

figure;

plot3(x,y,z,'r-');

hold on;

plot3(x,-y,z,'b')

title('螺旋线');

xlabel('x axis');

ylabel('y axis');

zlabel('z axis');

grid on;

clearvars;

close all;

clc;

%每个圆的周长是一样的

t = 0:0.01:4*pi;

x = cos(t);

y = sin(t);

z = t*2;

figure;

plot3(x,y,z);

title('螺旋线');

xlabel('x axis');

ylabel('y axis');

zlabel('z axis');

grid on;

%圆的周长是递增的

t = 0:0.01:10*pi;

A = 1;

w = 1;

sita = 0;

for ii = 1:length(t)

x(ii) = A *cos(w*t(ii) + sita);

y(ii) = A *sin(w*t(ii) + sita);

A = A+ 0.1;

end

z = t*2;

figure;

plot3(x,y,z,'r');

title('螺旋线');

xlabel('x axis');

ylabel('y axis');

zlabel('z axis');

grid on;

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阿基米德螺旋线公式：

//极坐标方程为: r = a + bθ//平面笛卡尔坐标方程式为: x = (a + bθ)cos(θ), y = (a + bθ)sin(θ)//a: